VANCOUVER, BRITISH COLUMBIA--(CCNMatthews - April 10, 2006) - Ainsworth Lumber Co. Ltd. ("Ainsworth") (TSX:ANS) today announced that it intends to offer US$75 million aggregate principal amount of floating rate senior unsecured notes due 2013 (the "Notes") pursuant to a private placement under Rule 144A. Ainsworth intends to use the net proceeds of the offering of the Notes to partially finance its previously-announced construction of a second production line at its Grande Prairie, Alberta OSB facility.

This press release is not an offer of securities for sale in the United States. The Notes have not been registered under the United States Securities Act of 1933 or any state securities laws, and may not be offered or sold in the United States absent registration or an applicable exemption from registration requirements.